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Alenkasestr [34]
3 years ago
9

Trevor sees eight red birds he sees five more red birds then blue birds how many blue birds does Trevor see

Mathematics
1 answer:
horrorfan [7]3 years ago
3 0

Answer:

3 blue birds

Step-by-step explanation:

To answer this question, simply subtract:

8 - 5 = 3

So, Trevor saw 3 blue birds

Hope this helps!

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A school has 55 students . If 10 of the students are boys , what is the ratio of girls to boys ?
Art [367]
45:10 I think ? .. that’s how my teacher did it
4 0
3 years ago
Yesterday I drove 150 minutes at a speed of 100 miles/h. How many miles did I drve?​
krok68 [10]

Answer: 250 miles

Step-by-step explanation:

I am not sure what grade level you are, but this is how it is done in college.

I hope it can give you an idea and be of some help.

First you have to convert 150 minutes to hours. Then you multiply your new hours to 100 miles.

150 minutes x <u>     1 hour     </u> x<u>       100 miles    </u>= 250 miles

                           60 mins.              1 hour

3 0
3 years ago
Potatoes: Suppose the weights of Farmer Carl's potatoes are normally distributed with a mean of 9 ounces and a standard deviatio
katrin2010 [14]

Answer: a)  79.10 %           b) 7%                c)19.85 %

Step-by-step explanation:

a) Z = ( × - μ ) ÷ σ           Where  μ mean of population σ standard               deviation Z is the abscissa to give the area or probability we are looking for associated to the value 10 ounces ( × )

So:  Z = ( 10 - 9 ) ÷ 1.2  ⇒ Z = 1/1.2 ⇒   Z = 0.83  it has to be below this value

From Z tables we get  P [ Z ≤ 0.82 ] = 0.7910  0r  79.10 %

b) Following the same procedure: We look for

P [ Z > ( x - μ ) ÷   σ ]    ⇒   Z  =  ( 12 -10 ) ÷ 1.2  = 2.5

From Z table we get the area under the curve from the left tail up to the point Z < 2.5 ( 2.5 not included) but we were asked for the area out of that previous so 1- 0.9930 = 0.007 is the area we are looking for

So P (b) = 0.007  or 7 %

Finally between the two points above mentioned ( 10 ≤  Z  ≤ 12 ) we use the previous values (taking in consideration the limits, according to the problem statement )

Z ≤ 10     Z ⇒( 10-9  ) ÷ 1.2   Z = 0.7967

Z ≥ 12     Z ⇒ ( 12 - 9 ) ÷ 1.2  Z = 0.9952

The interval is between these two points

0.9952 - 0.7967 = 0.1985   ⇒ or 19.85 %

The attached help in the understanding of the solution

                               

5 0
3 years ago
What is the percent change from 1800 to 1926
Crank
The percentage change is 6.54%
You have to divide 1800÷1926, then multiply by 100 and you'd get 93.46, then subtract 100-93.46 which equals 6.54% :)
4 0
3 years ago
Which value could be the length of the missing side of the triangle? (the side of the triangle has 5, the bottom has a 12 and th
sveta [45]
12 is the answer.

Hope it helps!
7 0
3 years ago
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